July weather forecast
Roswell, GA

A breathtaking nature scene in the Blue Wall spot with the Old Mills State Park in Roswell, Georgia
A breathtaking nature scene in the Blue Wall spot with the Old Mills State Park in Roswell, Georgia

Weather in July

July, like June, is a hot summer month in Roswell, Georgia, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 90.3°F (32.4°C).

Temperature

The warmest month is July, with an average high-temperature of 90.3°F (32.4°C) and an average low-temperature of 71.2°F (21.8°C).

Heat index

In July, the average heat index is estimated at an extremely hot 105.8°F (41°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity in Roswell are July and August, with an average relative humidity of 68%.

Rainfall

In Roswell, during 20.8 rainfall days, 4.92" (125mm) of precipitation is typically accumulated. In Roswell, Georgia, during the entire year, the rain falls for 183.1 days and collects up to 45.12" (1146mm) of precipitation.

Snowfall

April through October are months without snowfall in Roswell.

Daylight

In Roswell, the average length of the day in July is 14h and 10min.
On the first day of the month, sunrise is at 6:29 am and sunset at 8:52 pm. On the last day of July, in Roswell, sunrise is at 6:48 am and sunset at 8:39 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Roswell?

July is the warmest month in Roswell, Georgia, with an average high-temperature of 90.3°F (32.4°C) and an average low-temperature of 71.2°F (21.8°C).

What is the temperature in July in Roswell?

In July, in Roswell, Georgia, the average high-temperature is 90.3°F (32.4°C), and the average low-temperature is 71.2°F (21.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 105.8°F (41°C).

What is the least humid month in Roswell?

The months with the lowest humidity in Roswell are July and August, with an average relative humidity of 68%.

What is the average humidity in July in Roswell?

The average relative humidity in July in Roswell is 68%.

How much does it rain in Roswell in July?

In Roswell, Georgia, in July, it is raining for 20.8 days, with typically 4.92" (125mm) of accumulated precipitation.

When it does not snow in Roswell?

In Roswell, Georgia, snow does not fall in April through October.

How many hours of daylight does Roswell have in July?

In Roswell, Georgia, the average day length in July is 14h and 10min.

What time are sunrise and sunset in July in Roswell?

In July, on the first day of the month, sunrise is at 6:29 am and sunset at 8:52 pm. On the last day of the month, in Roswell, Georgia, sunrise is at 6:48 am and sunset at 8:39 pm EDT.

What month has the most sunshine in Roswell?

With an average of 10.5h of sunshine, July has the most sunshine of the year in Roswell.

How long on average sun shines in July in Roswell?

In July, the average sunshine duration is 10.5h.

What is the month with the highest UV index in Roswell?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Roswell, Georgia.

What is the UV index reading in July in Roswell?

The average daily maximum UV index in July in Roswell is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Roswell, GA

Average temperature in July - Roswell, GA
  • Average high temperature in July: 90.3°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in July: 71.2°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure in July
Roswell, GA

Average pressure in July - Roswell, GA
  • Average pressure in July: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in July
Roswell, GA

Average wind speed in July - Roswell, GA
  • Average wind speed in July: 4.7mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in July
Roswell, GA

Average humidity in July - Roswell, GA
  • Average humidity in July: 68%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).

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Average rainfall in July
Roswell, GA

Average rainfall in July - Roswell, GA
  • Average rainfall in July: 4.92"

The wettest month (with the highest rainfall) is August (5.55").
The driest month (with the least rainfall) is October (2.36").

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Average rainfall days in July
Roswell, GA

Average rainfall days in July - Roswell, GA
  • Average rainfall days in July: 20.8 days

The month with the highest number of rainy days is July (20.8 days).
The months with the least rainy days are October and November (10.3 days).

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Average snowfall in July
Roswell, GA

Average snowfall in July - Roswell, GA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Roswell, GA

Average snowfall days in July - Roswell, GA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Roswell, GA

Average daylight in July / Average sunshine in July - Roswell, GA
  • Average daylight in July: 14h and 10min

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

  • Average sunshine in July: 10h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in July
Roswell, GA

Average sunshine days in July - Roswell, GA
  • Average sunshine days in July: 8 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (8 days).

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Average UV index in July
Roswell, GA

Average UV index in July - Roswell, GA
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in July
Roswell, GA

Average cloud cover in July - Roswell, GA
  • Average cloud cover in July: 32

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in July
Roswell, GA

Average visibility in July - Roswell, GA
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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